Bearing.



c. A. ANDERSON.

BEARING. APPLICATION FILED NOV. 21, 1911- Patented Dec. 1, 1914.

2 SHEETS-SHEET l.

HE NoRqls PETR5 60.. PHOTILLITHCL. WASHING TON 1v C.

G. A. ANDERSON. BEARING.

unwwnon FILED 11011.21, 1911. 1,1 19,056, Patented Dec. 1, 1914.

. 2 SHEETS-$113131 2.

zdmdmwm f @W HE NORRIS PETERS CO1. PHOTO-LITHCL. WASHINGTON. D. c

CAR ;AnIoNIUs'AunnnsoN, F. cHIcAeo, ILLIIIoIs.

BEARING.

Application filed November 21,1911. semi No. 651,533.

Toall whom it may concerfi I 7 Be it known that I,"CARL,ANToNiUs AN- person, a citizen of the UnitedlStates, residing atChica'go, inIthe county of Cook and State of Illinois, have ,invented a certain new and useful Improvement in Bearings, of which the following is a full, clear, concise,

and exact description, reference being had to theaccompanyingdrawings, forming a part of this specification. I

My invention" relates to power transmission mechanisms and is more particularly applicable for heavy duty bearings, such for instance asare used in connection with elevators ofthe freight or passenger type, and is :designedto produce animproved mecha nism of'Ttbis kind.

I While my inventionisnot limited to elevators, yet in the ldesci ip'tionhereinil have set forth my inveiition as applied particularly toaii elevator system for purposes of illustrating one formwhich my; invention may take. The specifiqdes'cription follow.-

ing therefore is'not intended tc limit my inf ventionl to} such use.

I In the embo liment O th itiollherein disclosed'I utilize a drum for operating the Q cured jtoi'a worm wheel, whichworm wheel I Thetwo worm wheelsfare then driven by means of a shaft which isprovided w th two f worms, one a right handed andthe other a elevator..cable,f'which "drum is suitably se may be associatedwith an idler mm wheel.

left handed worm. Thisshaft is preferably mounted at its extremities... In the novel ar-. rangementl of,thisnpowerjshaft as set .forth herein, I provide a center bearingfor this shaft between the worms, which center bearing isso associated with the framework of the mechanism that it is removable, whereby the worm shaft may be bodily removed preferably through one of the apertures provided for a bearing without having to displace any ofthe other apparatus connected with the said mechanism except the idler worm wheel. In this manner the shaft is properly supported and 'it is not necessary to entirely take. apart the entire mechanism in order to replace or repair the shaft upon which the worms are mounted.

' I will describe my invention more in detail by reference to the accompanying draw- .ings. illustrating the same as applied to an elevator system, in which:

Figure 1 is aside view partly in section of my improved mechanism; Fig. 2 1s a sec- Specification-of Letters Iatent. Patented De 1 1914.

tional View of a portion of the apparatus to illustrate features of construction; F ig.'3 is a partial sectional view of a portion of the apparatus on lines a a of Fig. 4; and Fig.

4- is a partial sectional view of a portion of the apparatus on lines 6-6 of Fig.' 3.

Referring to the figures, I show a drum 1 secured to the shaft 2, which drum carries and operates the cable3. The shaft also carries a worm wheel 4 and suitable bearings are provided, of which one is shown at 5 to support the shaft 2 with its associated ap paratus." A housing 6 mounted on a suitable base? is provided within which the various mechanisms including the worm wheel 4 and worms associated therewith and to be described-later are mounted. This housing has an inclosin'g hood 8 which is removable for purposes'of inspection and repair. The two walls of the housing each have openings 9, 9 and cover plates 10, 10 held in place by suitable bolts 11 which close these openings 9to entirely inclose the operating parts, as will be more clearlyv apparent lateri- The plates 10 have guides12 whose purpose will be presently explained; The housing 6 has at one end an enlarged portion 13 which carries the bearing 14 for a shaft 15 and which bearing 14 is suitably held in place by means of the bolts 16. A cover plate 17 held in place by bolts 18 closes the aperture centrally of the bearing l l. The housing 6 at its oppositeextremity has an enlarged portion 19 which carries a second bearing 20 for .a shaft 15 and which is provided with a suitable packingv box 21 as is well understood in. the art. The end of the shaft l5 has a clutch member 22 which is suitably secured to the operating pulley of a brake mechanism'28. The shaft 15 through the interposition of theclutch member 22 is alined with and operated by: a suitable motor 25.

The worm wheel 4 is associated with a second worm wheel 26, which second worm wheel is mounted on the shaft 27 suitably supported in bearings provided in the housing 6 of which one is shown at 28. A bear ing 28 and its corresponding bearing on the other side are made slidable asshown so that the worm wheel26 may be moved awayfrom engagement with the worm wheel 4. This is done sothat the worm shaft may be removed as will presently appear. The second worm 5 wheel 26 is preferably an idler worm wheel and: cooperates with the worm wheel 4 in a manner. well understood by those skilled in [construction similar to this to remove the I ried by a bearing 33, which bearing is shown shaft with its worms from the housing without'taking apart the entire apparatus, and the construction which I will'now' describe permits of this removal with a minimum effort. It is also of great advantage to have a bearing centrally of the worms and this central hearing has usually been "in the way of the proper withdrawal of the'shaft upon which the worms are mounted; The central portion of the shaft 15 between the two worms 31 and 32 rests upon and is car more in detail in Figs. 3 and t, and which bearing rests upon the opposite walls of the housing 6 upon shelf-like portions 3415 providedjthercin. This bearing 33 islikewise provided with grooves 35 which register with the extensions 12 of the cover plates 10,

whereby. the said bearing is held place on the shelf 34.

Now tin order to remove the shaft 15 and the worms 31 and 32 the plates 10 10 arev I I x t t a a I which'i't may he slid sidewise along the proremoved and then the bearing 33 swung to the right until it is free of the shelf 34 so that it may be dropped downwardly out of engagement with the shaft 15. When thus removed, sufficient space is left so that the shaft 15 and the worms 31 and 32 may be moved toward the left over the said hearing to withdraw them from the housing,'

after the worms, ofcourse, have been disengaged from the worm wheels 4 and 26. After the bearing 33 has been slid out of Copies of this patent may be obtained for -disengaged from the teeth of the worm the brakemechanism 23. Theiidler worm wheel 26 together with its bearings 28 is nowmoved to the right so that its teeth are wheel 4, :whereupon' the shaft 15 can then be rotated until worms 31 and-32 are free from'the worm wheels 4 and 26,at' which time the worm 32 between the worm wheels t and. 26, after which the shaft "15- must be" rotated in the opposite direction to, permit the orm to. pin-es; th mm wheel 4, wherea'ft'er ithe said".shaft'and o ms ma nti el W hd aw a Itvidllthusbe' seen that avery'simple device has been'provided whereby the worm tm rbe ad y W thdrawn. om i s associated mechanism without my disturbing the heavy worm wheel andother it assq 'ate' i Pa t i My n ent. l s be clear a dit, l a he ler tha many in d fis a't o s a be made m" he tr st fiesefif lffih hereinwithout departingjfrom its scope;

Having thus described one fo r n of a r-Crying out my'invention,"whatfclalni as new and desire to secure by Letters Patent' isz' A ra wq k adap dito s pped h ft having-walls 'parallel'with' said shaft? n tepke p oi ti s. i aid lide wa s," a bearing adaptedgjto rest upon said stepli epmj etiqnsas ap ert a shaft and from ie tion to f e the h ffia ft mil r p a e for said, side 'wallsi a t' said projections'h'aving means to hold' the bearing I.

In witness whereof, I hereunto subscribe Witne s .11" t OHN As ANDERSON: 1' HAz'nr; Johns 1 live cents each, by addressing the Commissioner trum s, Wahi8ton,n.c." I a a V 

